A beginner's guide to bitcoin: What you need to knowIn essence, bitcoin is a purely digital currency – there are no notes or coins – that can be used exclusively in online transactions. It is also one of the first examples of a cryptocurrency: A monetary system where encryption is used to secure transactions and, in theory, keep transactions anonymous. Though bitcoin is not the only purely digital currency, it is the one which has gained the most traction...
http://www.stuff.co.nz/business/79557183/A-beginners-guide-to-bitcoin-What-you-need-to-know
